1870s 1880s
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C1893 Clark Candlestick Switchboard Telephone
C1893 Clark Candlestick Switchboard Telephone
c. 1893
Long-distance line connects Boston to Chicago
1893
Tech
1893 TW Ness Catalog
1893: 1893 TW Ness Catalog
PDF
Bell's original patents expire
1893
Biz